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3 December, 16:47

A manager buys three shares of stock today, and then sells one of those shares each year for the next 3 years. His actions and the price history of the stock are summarized below. The stock pays no dividends.

Time Price Action

0 $190 Buy 3 shares

1 200 Sell 1 share

2 200 Sell 1 share

3 200 Sell 1 share

A. Calculate the time-weighted geometric average return on this "portfolio."

B. Calculate the time-weighted arithmetic average return on this portfolio.

C. Calculate the dollar-weighted average return on this portfolio.

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Answers (1)
  1. 3 December, 19:06
    0
    a. The Geometric average return is 1.72%

    b. The Arithmetic average return is 1.75%

    c. The Dollar weighted average return is 2.61%

    Explanation:

    a) In order to calculate the time-weighted geometric average return we would have to calculate first the Holding period return as follows:

    Holding period return = (200 - 190) / 190 = 5.263%

    Hence, Geometric average return = (1 +.05263) ^ (1/3) - 1 = 1.72%

    b) To calculate time-weighted arithmetic average return we have to make the following calculation:

    Arithmetic average return = 5.263% / 3 = 1.75%

    c) To calculate time-weighted arithmetic average return we would have to make the following calculation:

    Dollar weighted average return=-190*3 + 200 / (1+r) + 200 / (1+r) ^2 + 200 / (1+r) ^3 = 0

    = 2.61%
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